Giroux, one of the NHL's highest-scoring centers the last seven seasons, will make his debut at left wing in Monday's exhibition game at the New York Rangers.
The Flyers have 27 healthy players left in training camp, and they plan to carry 23 for the Oct. 4 opener in San Jose.
We pose five questions about the coming season.
Defenseman Ivan Provorov and winger Travis Konecny, both selected in the first round of the 2015 draft, have unlimited potential and should build on their strong rookie seasons with the Flyers.
Travis Sanheim is battling Robert Hagg and Sam Morin for the Flyers' two open defensive spots.
They went 0 for 9 on the power play and slipped to 1-1-2 in the preseason.
Several rookies are having strong camps and giving the Flyers' bass some tough choices to make.
The Flyers now have 35 healthy players in camp; they will start the season with 22 or 23.
The Flyers will have their marquee veterans in the lineup for Thursday's exhibition in Boston, but they will also have six rookies, including Taylor Leier.
Right winger Nicolas Aube-Kubel went through growing pains in the AHL last season, but Flyers GM Ron Hextall believes he will have a breakout campaign.
The defenseman had a procedure on his back in late April. He hopes to be at 100 percent by opening night.
The Flyers, with many veterans sitting, will play split-squad games against the New York Islanders in Allentown and Brooklyn on Wednesday.
What the defenseman learned in the second year was to abandon sexy for steady, a mode that was on display Sunday night.
The veteran had a lot of fun being a winger on a line with Sean Couturier centering Jake Voracek and him.